Margin Availability on Expiry

@ShubhS9 For last couple of expiry - I’m witnessing day end available margin is a significantly large number even though OTM position (with value 0.05) left as it. Earlier even for worthless OTM contract on expiry required huge margin even after market closure.

What has changed recently? Is there any chance from regulator or from Zerodha?

Can you share more details? Will be easier to answer.